import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: HP
 * Date: 2023 -04 -29
 * Time: 22:27
 */
abstract class Shape {
    public abstract double getArea();
    public abstract double getPerimeter();
}

